Sigma announce APO 50-150 mm F2.8 DC lens

Sigma has today announced a very interesting sounding lens, the new APO 50-150 mm F2.8 EX DC HSM. This lens promises to be compact (its DC notation means its designed for an APS-C size imaging circle) and fast (an F2.8 maximum aperture) with a good telephoto zoom range, HSM focusing motor and four SLD (Low Dispersion) glass elements to reduce chromatic aberrations. This lens on a 1.5x crop digital SLR (such as the Nikon D80) would provide an equivalent FOV of 75 to 225 mm.

The Sigma Corporation is pleased to announce the launch of the new APO 50-150mm F2.8 EX DC HSM lens.

Specially designed for digital SLR cameras with an APS-C size image sensor, this large aperture F2.8 lens has a compact and lightweight construction of 76.3mm (3.0”) in diameter, 132.6mm (5.2”) in length and weighing just 780g (27.5oz) (Nikon Mount).

The incorporation of the very latest optical technology gives optimum lens performance providing excellent correction for flare, ghosting and all types of aberrations. High image quality is assured throughout the entire zoom range. Four SLD（Special Low Dispersion）glass elements are used for utmost correction of chromatic aberrations.

The HSM (Hyper Sonic Motor) system ensures quiet and high-speed auto focusing with full time manual focus override.